Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 347 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a results table (d) small test objects
2. 2.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
5. 5.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
6. 6.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) a piece of thermocol (d) a pebble
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a coin (d) an ice-cream stick
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) yeast
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
17. 17.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a magnet (d) small test objects
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
20. 20.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a tub of water (d) a mirror
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) more plain water (d) a little shaking
24. 24.🛟 Which of these sinks in water? (a) a ball of clay (b) an empty capped bottle (c) a dry leaf (d) an ice-cream stick
25. 25.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a ping-pong ball (c) a feather (d) a metal key
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🛟 Does a cork float or sink in water? (a) sinks (b) floats
28. 28.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
30. 30.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
31. 31.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
32. 32.True or false: an ice-cream stick sinks in water. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a ping-pong ball (d) a piece of thermocol
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) a steel spoon (d) an empty capped bottle
36. 36.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a balloon (d) yeast
39. 39.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet

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